Gardner Impact Test

Falling dart impact, also known as Gardner impact, is a traditional method for evaluating the impact strength or
toughness of a plastic material. The test is often used to specify appropriate materials for applications involving impact
or to evaluate the effect of secondary finishing operations or other environmental factors on plastic impact properties.

The test sample rests on a base plate over an opening of specified diameter. An “impactor” sits on top of the test
sample with a nose of specified radius in contact with the center of the test sample. A weight is raised inside a guide
tube to a predetermined height, then released to drop onto the top of the impactor, forcing the nose through the test
sample. The drop height, drop weight, and the test result (pass / fail) are recorded.

The most common method to analyze this data is called the “Bruceton Staircase” method. A number of samples are
used to bracket the pass/fail energy level. Then a series of 20 impacts are conducted. If a test sample passes, the
drop height is increased by one unit. If a test sample fails, the drop height is decreased by one unit. The results from
the 20 impacts are used to calculate the Mean Failure Height the point at which 50% of the test samples will fail under
the impact.

What is FRP?

Glasbord ProductsFRP, fiberglass reinforced plastic, is a composite made from fiberglass reinforcement in a plastic (polymer) matrix. A construction analogy would be the steel reinforcing bars in a concrete matrix for highways.

By reinforcing the plastic matrix, a wide variety of physical strengths and properties can be designed into the FRP composite. Additionally, the type and configuration of the reinforcement can be selected, along with the type of plastic and additives within the matrix. These variations allow an incredible range of strength and physical properties to be obtained. FRP composites can be developed specifically for the performance required versus traditional materials: wood, metal, ceramics, etc.

Engineers can design the FRP composite to provide the needed characteristics, and avoid cost penalties of an over-engineered product.

What is Fiberglass?

Fiberglass fibers are made from molten glass extruded at a specified diameter. The fibers are gathered into bundles and the bundles combined create a roving. Rovings are a continuous rope, similar to twine, and are wound on a mandrel to form a ball called a doff. Reinforcements for FRP are made from rovings that are chopped into short strands, woven into a cloth or used as continuous roving.

There are many factors that affect the reinforcement characteristics of fiberglass:

  1. Fiber and bundle diameter and type of glass
  2. Direction of the fiberglass reinforcement
  3. The amount of fiberglass reinforcement
  4. The physical contact (wetout) of the fiber with the polymer

All of these factors must be taken into account when designing an FRP composite so that the required physical property strengths are met.

What are Plastic/Polymers?

There are two basic types of plastics/polymers: thermoplastic and thermoset. In general, FRP composites utilize a thermoset plastic.

A plastic in which the polymer molecules are not crosslinked (not chemically bonded to other polymer molecules) is a thermoplastic. Since the molecules are not connected by crosslinks, it allows the molecules to spread farther apart when the plastic is heated. This is the basic characteristic of a thermoplastic; the plastic will soften, melt, or flow when heat is applied. Melting the plastic and allowing it to cool within a mold will form the finished product. Typical thermoplastics are: polyethylene (PE)– used in making garbage bags; polyvinyl chloride (PVC)– used for house siding; and polypropylene (PP)– used as carpet fibers, packaging, and diapers.

A plastic in which the polymer molecules are crosslinked (chemically bonded) with another set of molecules to form a “net like” or “ladder-like” structure is a thermoset. Once crosslinking has occurred, a thermoset plastic does not soften, melt, or flow when heated. However, if the crosslinking occurs within a mold, the shape of the mold will be formed. Typical thermoset plastics are: unsaturated polyester (UP)– used for bowling balls and boats; epoxy– used for adhesives and coatings; and polyurethanes (PURs)– used in foams and coatings.

In addition to these basic characteristics, polymers provide the FRP composite designer with a myriad of characteristics that can be selected, depending on the application. Combined with reinforcement of the polymer matrix, a vast range of characteristics are available for FRP composites.

FRP Panels are Acceptable for Use in ISO Classes 5-8 Cleanroom Applications

Cleanroom ProductThanks to the exclusive Surfaseal finish, Glasbord is the perfect solution for applications requiring cleanability, low particle emission, biological resistance and chemical resistance.

Glasbord is the industry leading fiberglass reinforced plastic (FRP) panel. The homogeneously applied Surfaseal finish means that the surface is sealed and will
not trap soil or bacteria.

The system features Crane Composites’ Glasbord panel. The Glasbord panels are available with a Class A or Class C fire rating per ASTM E-84 with a smooth or embossed finish. The Glasbord FSFM panel has been tested and certified by independent third parties. The cleanroom certified FRP wall panels are completed with the use of biological and chemically tested adhesive and seam sealant for wall panel applications and trim-free seams.


Biotechnology | Pharmacy | Medical Devices | Hospitals | Pharmaceuticals

Glasbord FRP Wall Panels With Surfaseal

Kemlite® Ceilings and WallsSince 1954  GLASBORD FRP protected by Surfaseal has been the industry standard for FRP wall  and ceiling panels. Surfaseal provides extra protection against mold, mildew  and stains. Durable, cleanable, easy to install GLASBORD is the panel your  project demands backed by the service you deserve.

Surfaseal is a protective fnish that makes GLASBORD easier to clean and up 6 times more stain resistant than other FRP panels. This unique finish ensures GLASBORD wall and ceiling panels will stand up to harsh conditions while maintaining a clean and sanitary surface.

CFIA Accepted

Mitigating risks to food safety is the CFIA’s highest priority, and the health and safety of Canadians is the driving force behind the design and development of CFIA programs. The CFIA, in collaboration and partnership with industry, consumers, and federal, provincial and  municipal organizations, continues to work towards protecting Canadians  from preventable health risks related to food and zoonotic diseases. As an accepted sanitary product, Kemlite Glasbord FRP provides peace of mind for you, your organization and customer confidence.

FM Approved

Fire-X GLASBORD FM FRP is the only fiberglass reinforced interior wall panel that is accepted under Factory Mutual Research Approved FRP, Class 1 Interior Finish Material in accordance with Factory Mutual Research Approval Standard 4880.

Frontside Identification

Only GLASBORD FRP panels can be identifed before installation by colored threads on the back. After installation, GLASBORD FRP can be identifed by a Translucent Plastic Thread with Fluorescent Pigment Design® embedded in the front of the panel and visible by black fuorescent lighting.


  • Food Processing Plants
  • Commercial Kitchens
  • Restaurants
  • Restrooms
  • Convenience Stores
  • Locker Rooms


  • Mold & Mildew Resistant
  • Available in FM Approved
  • Meets CFIA Requirements
  • Easy to Install
  • Cleanable
  • Chemical Resistant
  • Durable

3 Rules for Food Processing Facilities: Clean, Clean, Clean

Food Processing FacilityThe three most important overall elements of any food processing and handling facility is that it should be cleanable, and so designed and constructed that it prevents entrance or harborage of pests, growth of bacteria or other sources of contamination.

Food processing facilities should have floors, walls, and ceilings constructed of suitable, approved materials which are durable, smooth, impervious and easily cleaned. Walls should be light colored and well-joined, and floors should be adequately sloped for drainage to trapped outlets. Openings to outside and/or non-food-processing or  -handling rooms or facilities must be sealed. Doors must be tight and close-fitting. And doors in food-processing areas self-closing.

Scholar Plastics has you covered!

With Kemlite Glasbord FRP wall panels and SaniGrid FRP ceiling systems, Scholar Plastics provides the needed building products to assist you in keeping it clean.

Kemlite FRP and SaniGrid FRP ceiling systems are Canadian Food Inspection Agency (CFIA) accepted and your best choice for ensuring a cleanable environment for your food processing environment.

Scholar Plastics stocks both Class ‘C’ and Class ‘A’ fire rated FRP panels for walls and ceilings. We also have all the accessories to complete the job, including PVC moldings, adhesives and sealants.

Contact Scholar Plastics today for all your cleanable FRP requirements.

Designs 4 U – Custom FRP Panels

Crane Composites played an important part in the $52 M renovation at the University of Michigan’s Crisler Center, home to men’s and women’s Wolverine basketball, as well as host to numerous wrestling and gymnastics events annually. Fiberglass Reinforced Plastic (FRP) wall panels were needed in ten concession areas and five trash nooks. The University wanted to utilize images of various athletic events printed in the iconic Michigan blue.  A durable, functional, long lasting custom option was needed.  Fortunately, Crane Composites had the perfect solution for this project — DESIGNS 4U. This highly customizable FRP panel is an innovative product that allows for virtually endless design possibilities.

Contact Scholar Plastics for more information about custom FRP panels for use in your facilities.

Scholar Plastics, Canada’s exclusive supplier of Crane Composites Products is proud to announce that DESIGNS Fiberglass Reinforced Plastic wall panel is now CAN/ULC-S102-M Approved.


DESIGNS, an upscale, stylish line of FRP wall panel has been changing our industry for over a year, and is now available in Canada. Scholar Plastics is excited about the design possibilities this product brings to the Canadian market.

Choose from over 20 standard patterns including wood grains, stone & natural looks, as well as canvas and weave patterns. If you can’t find exactly what you’re looking for, check out DESIGNS 4UTM ! Work with the experts at Scholar Plastics to create a panel that is EXACTLY what you envisioned for your project. Your custom design, logo, or image can now be transformed into a durable, cleanable and easy to install FRP wall panel.

DESIGNS is setting the industry standard for FRP even higher by combining the performance of FRP with style, and eye-catching patterns. These panels are available with complementary trims that give each and every installation a unique and finished look. Customized moldings are also available.

Contact your Scholar Plastics Sales Rep for more information and pricing here in Canada. Send an email to or call the Toll free Phone number 866-248-0737.

Scholar Plastics Fire-X GLASBORD interior wall and ceiling panels are not just FM tested, they’re FM approved.


Scholar Plastics are pleased to announce that they have the perfect FRP panel for your projects that require the highest levels of hygienic and sterile environments. Canada’s leading supplier of Fire-W GLASBORD FM® offer the perfect solution for Clean Rooms, Food Processing Plants and Pharmaceutical facilities.

These panels are available in durable and sanitary Smooth and traditional Pebble Embossed finishes, in 85 White. GLASBORD FM® boasts a significant list of features: resistance to mold, mildew, and bacteria growth, high impact strength, high moisture resistance, chemical resistance, stain resistance, sanitary finish, low maintenance, and easy installation.

The FM Approval reassures you that our product conforms to the highest standards, backed by scientific research and rigorous testing. Scholar Plastics Fire-X GLASBORD FM® is the only fiberglass reinforced interior wall panel that is accepted under Factory Mutual Research Approved FRP, Class 1 Interior Finish Material in accordance with Factory Mutual Research Approval Standard 4880.

For more information on this and other Scholar Plastics offerings please visit our website

Scholar Plastics congratulates Crane Composites on their recent GREENGUARD® Certifications

Scholar Plastics join GREENGUARD Environmental Institute’s Henning Bloech, GEI’s Executive Director in his accolades for Crane Composite’s achievements. “GREENGUARD Certified products help create healthier indoor environments. We applaud Crane Composites for demonstrating their commitment to health and sustainability by obtaining the certification.”

GREENGUARD® sets rigorous standards for their applicants’ manufacturing review, product evaluations and testing. High level emissions standards and verification requirements must be completed and achieved before certification can be awarded. After initial certification, there is prescribed on-going testing, documentation, and verification processes required for demonstration of consistent product performance.

Once achieved the certification is broadly recognized by Leadership in Energy and Environmental Design (LEED)Building Rating System, The Collaborative for High Performance Schools (CHPS) Best Practices, National Association of Home Builders’ National Green Building Standard and many other entities including the US Environmental Protection Agency.

Crane Composites manufacture a complete line of fibreglass reinforced plastic (FRP) panel products that meet strict chemical emissions limits, which contribute to the creation of healthier interiors and they can prove it with their GREENGUARD® Indoor Air Quality Certification.

Furthermore, Crane Composite products intended for use in schools, daycares or other environments where children spend significant periods of time, has earned the GREENGUARD® Children & Schools Certification. This certification demands stricter criteria because they are suitable for use in environments where children and others work, play or reside.

For more information on this and other Scholar Plastics offerings please visit our website

ArmorTuf® and Kemlite® Interior Sidewall Liners and Translucent Roof Panels pass Real-World test requirements

Scholar Plastics brighten up the transportation trucking industry with industry leader Crane Composites ArmorTuf® and Kemlite® Interior Sidewall Liners and Translucent Roof Panels. Let’s shed some light on some facts:

The Kemlite® 1% Light Transmission ETR Roof Panels beats the heat and keeps its cargo up to 26 degrees F cooler than an aluminum roof.*

Since 2002, ArmorTuf® has been the standard in North America for high performance Trailer and Truck Body liners.**

ArmorTuf®-NXT has double the impact resistance of a standard Trailer and Truck Body liner.**

ArmorTuf®-NXT is lighter than a standard Trailer and Truck Body liner.**

ArmorTuf-NXT’s surface is more stain resistant and easier to clean than thermoplastic panels. **

Crane Composites was the first to introduce FRP liners to the truck trail market, the first to introduce full seamless light-weight liners, first to introduce translucent roofs and first to introduce liners with integral scuff. ***

Contact your Scholar Plastics Sales Rep for more information and pricing here in Canada. Send an email to or call the Toll free Phone number 866-248-0737.

* Crane Composites, Inc. Form 65141 | Rev. 1 | 12.10 | (5520)
** Crane Composites, Inc. Form 65161S | 9.11 | (5855)